When to Plant Artemesia in Zone 4b

One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The best time to plant artemesia in Zone 4b can be determined by reviewing the USDA zone info.

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Planting Calendar for Artemesia

Frost tolerance for artemesia: Tolerant of a very small amount of frost.
When to plant: Up to 3 weeks before last frost.

Artemesia are barely cold tolerant which means that you can start planting them slightly earlier than other frost tender plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant artemesia
Possibly ok, but a risky time to plant artemesia
Probably not a good time to plant artemesia

The earliest that you can plant artemesia in Zone 4b is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant artemesia and expect a good harvest is probably August. If you wait any later than that and your artemesia may not have a chance to really do well. If you are starting your artemesia indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Zone 4b the average date of last frost happens on May 15. In the coldest months of winter you should expect an average low temperature of -25°F.

Remember that USDA zone info for Zone 4b may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Zone 4b last frost occurs after May 15 be ready to cover your artemesia in the event of a surprise late frost.

USDA Zone Info for Zone 4b

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-25°F
Highest Expected Low-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Zone 4b

You may be interested in your other planting guides for Zone 4b.